Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing my new design; and,

FIG. 2 is a front view of a display screen or portion thereof with icon showing a second embodiment of my new design.

The broken lines shown in the drawings represent portions of the display screen or portion thereof with icon that form no part of the claimed design. 

CLAIM I claim the ornamental design for a display screen or portion thereof with icon, as shown and described. 